ES2241572T3 - PHOSPHONATE AND TIOSULFATE BASED FERTILIZERS. - Google Patents

Abstract

The present invention provides a liquid fertilizer comprising a mixture of a salt of phosphorous acid together with either a thiosulphate such as ammonium or potassium thiosulphate and/or a salt of salicylic acid or salicyle amide. The use of this combination as a foliar spray, soil drench or irrigation component produces a greater fertilizer effect (on plant vigour and growth) and greater resistance to or control of parasitic fungal diseases, than each of the components applied individually or any combination of just two components.

Description

Phosphonate-based fertilizers and thiosulfate

The present invention relates to new compositions with fertilizer and antifungal effects, to procedures for its preparation and procedures for its use in the fertilization of plants and the control of mushrooms.

Phosphorus is one of the main essential elements that plants need and is generally provided to plants in the form of phosphate and / or polyphosphate. Phosphates are the salts of phosphoric acid (with formula H 3 PO 4 and molecular weight 98). Recently, it has been shown that plants can obtain phosphonate from phosphonates (sometimes also referred to as phosphites) which are the salts (organic or inorganic) of phosphonic acid (also referred to as phosphorous acid) (with formula H 3 PO_ { 3} and molecular weight 82). See, for example, US Patent Nos. 5,514,200 and 5,830,255 to Lovatt; US Patent Nos. 5,707,418 and 5,865,870 to Hsu; U.S. Patent No. 5,800,837 to Taylor; US Patent No. 5,047,078 to Gill. These describe formulations containing phosphorous acid or phosphonates suitable as fertilizers for plants. US Patent No. 5,865,870 describes that phosphorous acid and polyphosphonic acid can act synergistically to improve plant growth. US Patent No. 5,514,200 describes a buffer system comprising organic acids to stabilize phosphorus against phosphate oxidation to be used in phosphorus fertilizers. US Patent No. 5,047,078 describes the addition of "scale" inhibitor compounds to phosphate fertilizers to increase plant growth. DD 266755 describes the use of mono-, di- and triethanolamine to increase the assimilation of water by cultivated plants and also discloses the addition of additional substances, including 2-chloroethaphosphonic acid and salicylic acid. Phosphonate compounds have also been shown to be useful as fungicides, especially when fungi are phyomycetes or oomycetes. See, for example, US Patent Nos. 4,075,324 and 4,119,724 to Thizy; US Patent No. 4,139,616 to Lacroix et al .; US Patent No. 4,698,334; 4,806,445 and 5,169,646 of Horriere et al .; US Patent Nos. 4,935,410 and 5,070,083 to Bartlet; US Patent No. Taylor 5,736,164. These describe formulations, which contain phosphorous acid or phosphonates, suitable as fungicides for plants. US Patent No. 5,795,847 refers to the use of phosphite as an electrolyte in a herbicidal composition.

Ammonium thiosulfate and potassium thiosulfate, alone or mixed with other liquid fertilizer components, they have been used for many years as fertilizers. See the Thio-sul® sulfur fertilizer literature and KTS® produced by Tessenderlo Kerley. See also UK patent No. GB 2,259,912 of Sampson, which describes the use of ammonium thiosulfate in a growth stimulator plants.

The WPI summary with access number 91-249421 discloses an agent for the preservation of cut flowers comprising a silver salt soluble in water (100 pts. weight) and thiosulfate (300-2500 pts. Weight) to which a phosphite is added (30-300 pts. Weight) as a stabilizing agent.

Some of the problems with the prior art are due to the fact that the fertilizing effect of phosphonate is less than one would have expected from the amount of phosphorus applied, and the fungicidal effect is quite limited in relation to the types of pathogens controlled. This is due to the complex form of action that involves a combination of some fungistatic action and the putting into action of the natural defenses of plants (see Guest DI and Grant BR -The complex action of phosfonates in plants- Biological Reviws 66: 159 -187 (1991) The use of phosphonate, although it improves the resistance of plants to downy fungus infections (eg Plasmopora) and Phytophthora diseases, tends to increase the risk of ascomycete infections (p .ej., Erysiphe.) The objective of the present invention is to provide a solution to said problems.

According to one aspect of the present invention, provides a fertilizer composition comprising less a phosphonate and at least one thiosulfate.

In one embodiment, the composition of fertilizer also includes a salicylic acid, homologous, derivative or salt thereof.

The present invention comprises the use of a mixture of a phosphonate together with a thiosulfate and optionally at least one salicylic acid, homologue, derivative or salt of the same. The use of said combination shows an effect synergistic, since the combination of phosphonate with thiosulfate and optionally with salicylic acid, homologues, salts or derivatives of the It produces a greater fertilizing effect and fungicidal effect than such components used separately. It can have an effect even greater if all components (i.e. phosphonate, thiosulfate and salicylic acid, homologue, salt or derivative thereof) were used at the same time. The combination of thiosulfate with acid salicylic, homologous, salt or derivative thereof, in the absence of Phosphonate also produces a fertilizing and fungicidal effect.

Fertilizers based on this invention provide an effective response in growth greater than phosphonates or thiosulfates alone and the degree of fungicidal protection or resistance is broader than that achieved with phosphonates or thiosulfates only. The plants treated with the present invention suffer less from the diseases of phycomycetes (for example, phytophthoras and the "downy" fungus) that treated with, for example, only phosphonate and are less prone to other parasitic fungi, such as dusty mold. By consequently, the present invention provides a means for apply a unique product to plants that is an effective fungicide as well as an effective fertilizer.

Another advantage of the present invention is that the formulation is very stable during storage, for example, the tests with mixtures of potassium phosphonate and ammonium thiosulfate stored for a year have shown that it does not occur oxidation of phosphonate to phosphate and stored material not Shows signs of turbidity or precipitation. The use of others organic acids as buffers (as needed in patents US 5,514,200 and 5,830,255) is also not necessary to achieve stable solutions).

The term "Phosphonate" means a salt of phosphonic acid (H 3 PO 3). Phosphonates contain the trivalent radical \ equiv PO 3.

For the avoidance of doubt, phosphonic acid in sometimes referred to as phosphorous acid and its salts as phosphites Phosphonate mixtures can be used.

The phosphonate can be of any metal ion or another cation that forms such salt. As phosphonic acid has a P-H bond forms mono and di series salts. So much mono salts such as di and mixtures thereof can be use in the present invention. Preferably the phosphonate is an ammonium phosphonate or an alkaline phosphonate. Among the phosphonates alkaline, sodium or potassium phosphonate is preferred. Phosphonate Potassium is particularly preferred, in the form of mono- phosphonate and / or dipotassium (KH 3 PO 3, K 2 HPO 3) respectively).

Phosphonates can be produced by neutralizing phosphonic acid with an alkali. The present invention also comprises the use of phosphonic acid which is then converted into its phosphonate; Such conversion can take place in situ or ex situ . When, for example, potassium hydroxide is used for neutralization, depending on the molar ratio between potassium hydroxide and phosphorous acid, the phosphonate solution will contain varying amounts of dipotassium phosphonate, monopotassium phosphonate and unreacted phosphonic acid. It has been found that a solution of approximately 42% weight / weight with a pH between 6.7 and 7.3 containing approximately equal amounts of mono- and dipotassium phosphonate is a clear, colorless and very stable starting material for the present. invention.

The thiosulfate can be any suitable salt of A metal or other cation. Preferably the thiosulfate is thiosulfate of ammonium, sodium or potassium or a mixture thereof. Plus preferably the thiosulfate is in the form of ammonium thiosulfate or potassium ((NH 4) 2 S 2 O 3 or K 2 S 2 O 3).

The most common form of thiosulfate is thiosulfate ammonium and this is commercially available easily in the form of a 60% weight / weight solution, with a pH of about 7.5 and a density of about 1.32. Whether you need a higher proportion of potassium in the foliar fertilizer In the end, ammonium thiosulfate can be substituted, partially or totally, by potassium thiosulfate.

The present invention includes homologues functional and derivatives of salicylic acid and its salts. This means that the functional or derivative counterpart must be able to provide a fertilizing effect and / or an antifungal effect. The Examples of such salicylic acid derivatives include the salicylamide or a salt thereof and esters.

Examples of salicylic acid homologs include benzoic acid or a salt or derivative thereof, such as an ester. Examples of benzoic acid compounds that are can be used in the present invention can be found in     WO 99/25191.

The salicylic acid is preferably in the form of its potassium salicylate or salicylamide / C 7 H 5 KO 3 or C 7 H 7 salt.
NO_ {2}.

Salicylic acid itself is poorly soluble, but inorganic salts of salicylic acid, such as salicylate Sodium or potassium are easily soluble. When it's used salicylamide, instead of salicylic acid or a salicylate, the adding a few drops of alkali helps to dissolve it, forming for example sodium or potassium salicylamide. Salicylamide in addition they also dissolve more easily in the dissolution of thiosulfate, the presence of small amounts of alkali or ammonia in the solution of thiosulfate helps dissolution.

The preparation of the compounds used in the present invention is well known in the art. The compounds can be prepared in situ or ex situ .

In one embodiment, the composition of the The present invention does not include a water soluble silver salt. In another embodiment, if the composition contains a solution 100 parts by weight of a water-soluble silver salt, and between 300 and 2500 parts by weight of thiosulfate, then the amount of Phosphonate is different from 30 to 300 parts by weight.

The compositions of the present invention they are useful as fertilizers, particularly as foliar fertilizers More particularly, the compositions of the present invention increase the growth of plants in comparison with the individual components alone, they stimulate plant growth, plant vigor and / or crop yield, for example by reducing the tuber plague.

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The compositions of the present invention also have an antifungal effect. This can be a fungicidal or fungistatic effect. The compositions of the present invention may have activity against parasitic fungi. The compositions may have activity against phytomycete diseases such as phytophthoras and "downy" mold, for example, Plasmopora ; and / or ascomycetes such as, for example, Erysiphe .

In an embodiment particularly preferred the composition further comprises a regulator of the plant growth Preferably the regulator of Plant growth is chlormequate.

To apply the composition to a plant or to plant environment, the composition can be used as a concentrated or more frequently formulated in a composition that includes an effective amount of the composition of this invention together with a suitable inert diluent, a vehicle and / or a surfactant Preferably the composition is in the form of an aqueous solution that can be prepared from the concentrate. Effective amount means that the composition (and / or its components individual) provides a fertilizing or antifungal effect. Preferably an effective amount of the components is a concentration of up to about 4M phosphonate, up to approximately 5 M thiosulfate and / or up to approximately 0.8 M salicylate. Thus, in one embodiment the concentrate It can consist of up to approximately 10 M of the components. The concentrate formulation can be diluted, for example, in proportions of concentrate to water between approximately 1:40 and 1: 600 and is generally formulated to have a pH between approximately 6.5 and 8.5. At a dilution of 1:40, a concentrate of approximately 10 M will produce an application concentrate of up to approximately 0.25 M.

The speed and time of the application depend on multiple factors known to experts in the matter, such as the type of species, etc.

The composition is usually applied in quantities between 0.01 and 10 kg per hectare, preferably between 0.1 and 6 kg per hectare. Preferably the Phosphonate is applied at between 150 g / ha and 2 kg / ha. Preferably the Thiosulfate is applied at between 250 g / ha and 6 kg / ha. Preferably the Salicylic acid, a homologue, derivative or salt thereof is applied to between 1 g / ha and 100 g / ha.

In a preferred embodiment, a fertilizer composition according to the present invention comprises approximately 150 g / l phosphonate, approximately 275 g / l thiosulfate and / or about 10 g / l salicylamide. Preferably the phosphonate comprises approximately 75 g / l monopotassium phosphonate and approximately 75 g / l dipotassium phosphonate.

In addition to varying amounts of each compound which is mixed, as is common practice for many fertilizers foliar, it is also possible to combine other fertilizer elements in the final solution, such as, but not limited to, iron, copper, boron and molybdenum (often as micronutrients). These can be added as inorganic compounds soluble (e.g. borate or sodium molybdate) or as chelates (e.g., Copper EDTA) or other metal complex.

The compositions of the present invention are they can apply to soil, plant, seeds or other areas to be protected Preferably the present invention applies to plant foliage. The composition can be applied in the form of powders, wettable powders, granules (fast or slow release), emulsion or suspension concentrates, liquid solutions, emulsions, seed dressings or release formulations controlled such as microencapsulated granules or suspensions, soil soaper, irrigation component, or preferably a foliar spray.

Dusts for sprinkling are preferably formulated by mixing the active ingredient with one or more vegetables finely divided solids and / or diluents, for example, clays natural, kaolin, pyrophyllite, bentonite, alumina, montmorillonite, Kieselguhr, gypsum, diatomaceous earth, calcium phosphate, carbonates calcium and magnesium, sulfur, calcium oxide, flour, talc and other solid organic and inorganic vehicles.

The granules are formed by absorption of active ingredient in a granular porous material, for example, pumice stone, attapulgite clays, fuller's land, kieselguhr, diatomaceous earth, ground cornfields and similar or to a hard core material such as sand, silicates, mineral carbonates, sulfates, phosphates or the like. The agents commonly used to aid in impregnation, agglutination and coating solid vehicles include solvents aliphatic and aromatic petroleum, alcohols, acetates of polyvinyl, polyvinyl alcohols, ethers, ketones, esters, dextrins, sugars and vegetable oils, with the active ingredient. Other additives may also be included, such as agents. emulsifiers, wetting agents or dispersing agents.

Formulations can also be used microencapsulated (suspensions of CS microcapsules) or others controlled release formulations, particularly for the slow release over a period of time, and for treatment of the seeds.

On the contrary, the composition may be in form of liquid preparations to be used by immersion, as irrigation additives or aerosols, which are generally aqueous dispersions or emulsions of the active ingredient in presence of one more wetting agents, dispersing agents or emulsifying agents (surface active agents). The compositions that they must be used in the form of aqueous dispersions or emulsions they are generally provided in the form of an emulsifiable concentrate (EC) or a suspension of the concentrate (SC) containing a high proportion of the active component or ingredients. An EC is a homogeneous liquid composition, which usually contains the active ingredient dissolved in an organic solvent substantially non volatile. An SC is a dispersion of particles thin active solid ingredient in water. For your administration, the concentrates are diluted in water and generally applied by means of an aerosol to the area to be treated.

Liquid solvents suitable for EC include methyl ketone, methyl isobutyl ketone, cyclohexanone, xylenes, toluene, chlorobenzene, paraffins, kerosene, mineral oil, alcohols (eg, butanol), methylnaphthalene, trimethylbenzene, trichlorethylene, N-methyl-2-pyrrolidone and tetrahydrofurfuryl alcohol (THFA).

Such concentrates are generally necessary. to tolerate storage for extended periods and after such storage, so that it is possible to dilute them with water to produce aqueous preparations that remain homogeneous for a sufficient time that allows its application by means of conventional dispersion equipment. The concentrates can contain between 1 and 85% by weight of the active ingredient or ingredients. When diluted to produce aqueous preparations Such preparations may contain varying amounts of active ingredient depending on the purpose for which they are going to use.

The composition can also be formulated as powders (powder for dry treatment of DS seeds or a powder dispersible in water WS) or liquids (fluid concentrates FS, liquid treatment of LS seeds), or microcapsule suspensions CS for use in seed treatments. The Formulations can be applied to seeds by procedures standard and through conventional seed treaters. In its use the compositions are applied to the plants, to the place of the plant, through any of the mechanisms for application of fertilizer compositions, for example, sprinkling, spraying or incorporation of granules.

When the final solution has to be applied to plants that, due to their hairy or waxy surface, can be difficult to wet, it may also be advantageous to include others additives, commonly known in the agrochemical industry, such such as surfactants, wetting agents, spreaders and aggregators (Examples of wetting agents include the silicone surfactants, non-ionic surfactants such as alkyl ethoxylates, anionic surfactants such as phosphates, cationic amphoteric esters, salts and surfactants such as amidoalkyl fatty acid betaines).

As indicated above, the compounds of the invention may be the only active ingredient of the composition or can be mixed with one or more active ingredients additional such as nematocides, insecticide, synergists, herbicides, additional fungicides, additional fertilizers or plant growth regulators when appropriate.

As indicated above, the fertilizer produced according to the present invention generally apply to plant foliage but can also be applied to the soil or add to irrigation water. The fertilizer can be used advantageously in many types of agricultural or horticultural crops, which include but are not limited to cereals, legumes, basics, cucurbitaceae, root vegetables, sugar beets, Vine, citrus and other fruit trees and soft fruits. Plus particularly, the crops that will benefit from the fertilization include, but are not limited to, peas, rapeseed oil, carrots, spring barley, avocado, citrus, mangoes, coffee, deciduous tree crops, vines, strawberries and other types of crops of berries, soybeans, thick beans and other types of commercial beans, corn, tomatoes, cucurbitaceae and other species of cucumis, lettuce, potatoes, sugar beet, peppers, sugar cane, hops, tobacco, pineapple, coconut palm trees and other commercial and ornamental palms, gummies and other plants Ornamental

The various preferred aspects and ways of Embodiment of the invention will be described with reference to following non-limiting examples.

Example 1

Dissolution 1

An aqueous solution containing a total of 30% by weight of mono- and dipotassium phosphonate in approximately same proportion.

Dissolution 2

An aqueous solution containing 55% by weight of ammonium thiosulfate ("ATS").

Dissolution 3

An aqueous solution containing 20 grams per liter of potassium salicylamide.

Dissolution 4

An aqueous solution containing 75 g / l of monopotassium phosphonate, 75 g / l dipotassium phosphonate, 275 g / l ammonium thiosulfate and 10 g / l potassium salicylamide.

These solutions were applied to plants of lettuce, separately and in combination and repeated applications after an interval of 10 days. Five were made Replicas of each treatment and the results are presented as averages of the five replicas. Five plants were left without spraying as untreated controls of the other treatments. After eight, twelve, sixteen and twenty one days, the plants were examined To detect diseases.

TABLE 1 Dusty mold rating (0-9, in which a higher number is equal to a higher degree of disease)

one

Table 1 shows the synergistic effect on the disease level achieved by adding solutions 1 and 2 (phosphonate + ATS) and between solutions 1 and 3 (phosphonate + salicylamide) and the additional effect of using all three solutions together. Disease levels dropped from an average of 7.2 to an average of 0.6.

In addition to assessing the level of disease, evaluated plant growth by measuring average diameter after 35 days of growth and measuring the average fresh weight and dry above ground.

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TABLE 2 Plant growth after treatment with the solutions of the example

2

Table 2 shows the synergistic effect on the plant growth produced by the addition of solutions 1 and 2 (phosphonate + ATS), solutions 1 and 3 (phosphonate + salicylamide) and the additional effect of using all three solutions together.

The abbreviations used in the following Examples A-E are as follows:

A = phosphonate + thiosulfate

B = phosphonate + salicylate / salicylamide

C = thiosulfate + salicylate / salicylamide

D = thiosulfate + salicylate / salicylamide + phosphite

E = thiosulfate + salicylate + chlormequat

KP40 = 40% potassium phosphonate

KT47 = 47% potassium thiosulfate (weight / vol.)

KS20 = 20% potassium salicylate (weight / vol.)

CS8 = salicylamide (20g / l)

AT60 = 60% ammonium thiosulfate

PF723 = 55% ammonium thiosulfate

Examples TO

Solution 1 = KP40 at 0.75 l / ha every 10 days

Solution 2 = PF723 at 1.0 l / ha every 10 days

TABLE A1 Mold percentage dusty-lettuce

3

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TABLE A2 Dust mold percentage and attributes of sugar beet fertilizer

4

TABLE A3 Attributes of the fertilizer-barley of spring

5

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TABLE A4 Vine test Mold percentage dusty

6

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TABLE A5 Lettuce test Mold percentage dusty

7

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TABLE A6 Thick beans-attributes of fertilizer

(KP40 = 40% potassium phosphonate; PF723 = 55% ammonium thiosulfate)

8

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TABLE A7 Sugar beet Mold percentage dusty and fertilizer attributes

(KP40 = 40% potassium phosphonate; AT60 = 60% ammonium thiosulfate)

9

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TABLE A8 Sugar beet Mold percentage dusty and fertilizer attributes

(KP40 = 40% potassium phosphonate; AT60 = 60% ammonium thiosulfate)

10

Examples B

(Comparatives)

Solution 1 = KP40 at 0.75 l / ha

Solution 3 = CS8 at 1.0 l / ha

TABLE B1 Attributes of strawberry fertilizer

eleven

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TABLE B2 Attributes of the fertilizer-barley of spring

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TABLE B3 Mold percentage dusty sugar beet

13

TABLE B4 Attributes of the fertilizer-barley of spring

14

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TABLE B5 Mold percentage dusty-vine

fifteen

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TABLE B6 % tuber plague and attributes of potato yield

16

TABLE B7 Pest percentage of foliage-potato

17

Examples C

(Comparatives)

Solution 2 = PF723 at 1.0 l / ha every 10 days

Solution 3 = CS8 at 1.0 l / ha every 10 days

TABLE C1 Mold percentage dusty-vine

18

TABLE C2 Attributes of the fertilizer-bean gross

19

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TABLE C3 Attributes of fertilizer-peas

twenty

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TABLE C4 Attributes of carrot fertilizer

twenty-one

TABLE C5 Dust-rape mold percentage for seed oil

22

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TABLE C6 Fertilizer-Beet Attributes sugar bowl

2. 3

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TABLE C7 Attributes of strawberry fertilizer

24

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Examples D

TABLE D1 Potato test% Tuber plague, final performance and quality

25

TABLE D2 Potato test% Tuber plague, performance and quality benefits

26

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TABLE D3 Spring barley 1999 Mold percentage dusty and fertilizer attributes

(KP40 = 40% potassium phosphonate; CS100 = 10g / liter salicylamide; CS8 = 20 g / l salicylamide;

AT60 = 60% ammonium thiosulfate)

27

TABLE D3 (continued)

28

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TABLE D4 Spring barley Mold percentage dusty and fertilizer attributes

(KP40 = 40% potassium phosphonate; CS100 = 10 g / liter Salicylamide; CS8 = 20 g / l Salicylamide; AT60 = 60% Ammonium thiosulfate)

29

TABLE D4 (continued)

30

31

Examples AND

(Comparatives)

TABLE E1 Benefits of ammonium thiosulfate (ATS) and salicylate potassium (KS) with chlormequat (CCC) in barley spring

32

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TABLE E2 Benefits of ammonium thiosulfate (ATS) and potassium salicylate (KS) with chlormequat (CCC) in barley spring

33

The following table shows examples not Limitations of compositions formulated according to the present invention

Foliar fertilizer one

3. 4

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Foliar fertilizer two

35

The previous examples show that Compositions of the present invention show the desired effects fertilizers and antifungal.

Claims (20)

1. Fertilizer composition that includes less a phosphonate and at least one thiosulfate. 2. Fertilizer composition according to claim 1, further comprising at least one of salicylic acid, homologue, derivative or salt thereof. 3. Fertilizer composition according to claim 1 or 2, wherein the phosphonate is ammonium phosphonate, sodium or potassium or a mixture thereof. 4. Fertilizer composition according to any of claims 1 to 3, wherein the thiosulfate is thiosulfate ammonium, sodium or potassium or a mixture thereof. 5. Fertilizer composition according to any of claims 2 to 4, wherein the acid derivative Salicylic is salicylamide or a salt thereof. 6. Fertilizer composition according to any of claims 2 to 4, wherein the acid homolog Salicylic is benzoic acid or a salt or derivative thereof. 7. Fertilizer composition according to any of claims 2 to 5, wherein the salicylic acid salt, its counterpart or derivative is an organic or inorganic salt. 8. Fertilizer composition according to claim 7, wherein the salt is a sodium or potassium salt or A mixture of them. 9. Fertilizer composition according to any of the preceding claims in the form of a concentrate. 10. Fertilizer composition according to any of claims 1 to 8 in the form of an aqueous solution. 11. Fertilizer composition according to claim 10, comprising 150 g / l phosphonate, 275 g / l of thiosulfate and optionally 10 g / l salicylamide. 12. Fertilizer composition according to claim 11, wherein the phosphonate comprises 75 g / l of monopotassium phosphonate and 75 g / l dipotassium phosphonate. 13. Fertilizer composition according to any of the preceding claims further comprising a regulator of plant growth. 14. Fertilizer composition according to claim 13, wherein the growth regulator of the Plants is chlormequat. 15. Procedure for the fertilization of a plant comprising applying a fertilizer composition according to any of the preceding claims to the plant or its environment. 16. Method according to claim 15, in which phosphonate is applied in an amount between 150 g / ha and 2 kg / ha. 17. Method according to claim 15 or 16, in which the thiosulfate is applied in an amount comprised between 250 g / ha and 6 kg / ha. 18. Procedure according to any of the claims 15 to 17, wherein at least one of acid salicylic, a homologue, derivative or salt thereof is applied in a amount between 1 g / ha and 100 g / ha. 19. Use of a fertilizer composition according to any of claims 1 to 14 to stimulate the plant growth 20. Use of a fertilizer composition according to any of claims 1 to 14 to control the parasitic fungi